CN207598647U - Road roller hydraulic circuit - Google Patents
Road roller hydraulic circuit Download PDFInfo
- Publication number
- CN207598647U CN207598647U CN201721712219.XU CN201721712219U CN207598647U CN 207598647 U CN207598647 U CN 207598647U CN 201721712219 U CN201721712219 U CN 201721712219U CN 207598647 U CN207598647 U CN 207598647U
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- motor
- road roller
- hydraulic circuit
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Road Paving Machines (AREA)
Abstract
The utility model discloses a kind of road roller hydraulic circuits, belong to engineering machinery hydraulic control system field, for road roller, it includes hydraulic oil container, solenoid valve, hydraulic steering gear, hydraulic pump, hydraulic motor A, hydraulic motor B are also included at least, wherein the hydraulic pump is connect by hydraulic circuit with hydraulic oil container, hydraulic steering gear respectively；The hydraulic pump is also connect by fluid pressure line with hydraulic motor B, and solenoid valve is equipped on the hydraulic circuit between hydraulic motor B and hydraulic motor A.In view of above-mentioned technical proposal, the utility model can realize that single hydraulic pump controls hydraulic steering gear, multiple hydraulic motors, reduce the Hydraulic Elements quantity of hydraulic circuit, improve the stability of hydraulic circuit and reduce cost.
Description
Technical field
The utility model belongs to engineering machinery hydraulic control field, specifically, more particularly to a kind of road roller hydraulic pressure
Oil circuit.
Background technology
Road roller is as common engineering machinery, and hydraulic motor is more in hydraulic circuit, and traditional hydraulic circuit exists
Each hydraulic motor is needed to correspond to a solenoid valve in design process, the quantity of solenoid valve and occupied space gradually increase.
It is compact-sized for some, for the relatively limited road roller in inner space, the occupancy of the confined space is not only caused, but also
Increase the cost during machine-building.
And road roller is as common engineering machinery, market competition is more fierce, and quality and price are all client's selections
The influence factor of road roller.How the hydraulic circuit of road roller is efficiently modified, while ensureing hydraulic system stability
The quantity and price of Hydraulic Elements in hydraulic circuit are reduced, becomes the engineering machinery producer technical issues that need to address.
Invention content
The purpose of this utility model is to provide a kind of road roller hydraulic circuits, and single hydraulic pump can be realized to liquid
Pressure steering gear, multiple hydraulic motors are controlled, and are reduced the Hydraulic Elements quantity of hydraulic circuit, are improved the stability of hydraulic circuit
With reduce cost.
In order to achieve the above objectives, the utility model is achieved through the following technical solutions：
Road roller hydraulic circuit described in the utility model, including hydraulic oil container, also including at least solenoid valve, hydraulic pressure
Steering gear, hydraulic pump, hydraulic motor A, hydraulic motor B, wherein the hydraulic pump by hydraulic circuit respectively with hydraulic oil container, liquid
Press steering gear connection；The hydraulic pump is also connect by fluid pressure line with hydraulic motor B, hydraulic motor B and hydraulic motor A it
Between hydraulic circuit on solenoid valve is installed.
Further speaking, liquid is installed on the hydraulic circuit between the hydraulic oil container and hydraulic pump described in the utility model
Pressure oil filter.
Further speaking, the hydraulic steering gear described in the utility model is connect by hydraulic circuit with hydraulic cylinder.
Further speaking, the hydraulic motor A described in the utility model and hydraulic motor B pass through hydraulic circuit and overflow
Valve connects.
Further speaking, between the hydraulic motor A described in the utility model and hydraulic motor B on the hydraulic circuit of unicom
Check valve is installed.
Further speaking, the solenoid valve described in the utility model is two-position three way magnetic valve.
Compared with prior art, the beneficial effects of the utility model are：
The utility model can by a hydraulic pump come realize to hydraulic steering gear, two or more hydraulic motors it is same
When control, reduce crude oil road roller hydraulic circuit complexity and required Hydraulic Elements quantity, improve hydraulic system
Stability and working efficiency reduce the manufacture cost of hydraulic system, improve the market competitiveness.
Description of the drawings
Fig. 1 is the hydraulic schematic diagram of the utility model.
In figure：1st, hydraulic cylinder；2nd, hydraulic steering gear；3rd, hydraulic pump；4th, hydraulic motor A；5th, overflow valve；6th, check valve；
7th, solenoid valve；8th, hydraulic motor B；9th, hydraulic oil container；10th, hydraulic oil filter.
Specific embodiment
Technical solution described herein is described further with reference to the accompanying drawings and embodiments.
Embodiment 1：A kind of road roller hydraulic circuit, including hydraulic pump 3, hydraulic pump 3 by hydraulic circuit respectively with liquid
Pressure oil case 9 and hydraulic steering gear 2 connect, and the hydraulic steering gear 2 is connect with hydraulic cylinder 1 by hydraulic circuit.The hydraulic pressure
Pump 3 is also connect by hydraulic circuit with hydraulic motor B 8, is installed on the fluid pressure line between hydraulic motor B8 and hydraulic pump 3
There is solenoid valve 7.
Embodiment 2：A kind of road roller hydraulic circuit, wherein the hydraulic pump 3 passes through hydraulic circuit and hydraulic motor A4
Connection, hydraulic motor A4 are connect by check valve 6 with solenoid valve 7；The hydraulic circuit that the hydraulic pump 3 is connect with hydraulic oil container 9
On hydraulic oil filter 10 is installed.The structure and connection relation of rest part and the structure described in any previous embodiment and
Connection relation is identical.
Embodiment 3：A kind of road roller hydraulic circuit, wherein at the hydraulic motor A4 and hydraulic motor B8 link positions
Overflow valve 5 is installed.The structure and connection relation of rest part and the structure and connection relation described in any previous embodiment
It is identical.
In view of above-described embodiment, when in use, the course of work and principle are as follows by the application：
Hydraulic oil container 9 described in the utility model provides the hydraulic oil needed for entire hydraulic system, and hydraulic pump 3 is from hydraulic pressure
Draw oil in fuel tank 9.In order to ensure the hydraulic oil quality into hydraulic circuit, in the connection of hydraulic pump 3 and hydraulic oil container 9
Hydraulic oil filter 10 is installed at position.
The hydraulic pump 3 can drive hydraulic pump 3 by the use of the power that road roller itself engine provides as power resources
Work, hydraulic pump 3 are pressurized by 10 oil suction of hydraulic oil filter from hydraulic oil container 9, are passed through hydraulic oil by hydraulic circuit
Hydraulic steering gear 2 is sent into hydraulic cylinder 1.
Meanwhile the hydraulic oil of absorption is sent into hydraulic motor B8 by hydraulic pump 3 by hydraulic pipeline, hydraulic motor B8 is in hydraulic pressure
Operating is realized under the driving of oil.Due to the relationship of hydraulic pressure difference, hydraulic motor A4 adjacent thereto does not work.When 7 work of solenoid valve
When making, the hydraulic pressure difference in hydraulic circuit disappears, hydraulic motor A4 work, meanwhile, solenoid valve 7 provides hydraulic pressure to hydraulic motor B8
Oil, the B8 work of driving hydraulic motor.
In the utility model, in order to ensure hydraulic motor A4, the job stability of hydraulic motor B8 and hydraulic circuit
Stability is separately installed with overflow valve 5 on the two oil circuit, and overflow valve 5 can discharge extra hydraulic oil, ensure liquid
Press the stability of loine pressure.Solenoid valve 7 described in the utility model is two-position three way magnetic valve, meets multiplex roles and multiple
The needs of hydraulic motor driving.
Claims (6)
1. a kind of road roller hydraulic circuit, including hydraulic oil container（9）, it is characterised in that：Also include at least solenoid valve（7）, liquid
Press steering gear（2）, hydraulic pump（3）, hydraulic motor A（4）, hydraulic motor B（8）, wherein the hydraulic pump（3）Pass through hydraulic circuit
Respectively with hydraulic oil container（9）, hydraulic steering gear（2）Connection；The hydraulic pump（3）Also pass through fluid pressure line and hydraulic motor B（8）
Connection, in hydraulic motor B（8）With hydraulic motor A（4）Between hydraulic circuit on solenoid valve is installed（7）.
2. road roller hydraulic circuit according to claim 1, it is characterised in that：The hydraulic oil container（9）With hydraulic pump
（3）Between hydraulic circuit on hydraulic oil filter is installed（10）.
3. road roller hydraulic circuit according to claim 1, it is characterised in that：The hydraulic steering gear（2）Pass through liquid
Pressure oil road and hydraulic cylinder（1）Connection.
4. road roller hydraulic circuit according to claim 1, it is characterised in that：The hydraulic motor A（4）With hydraulic pressure horse
Up to B（8）Pass through hydraulic circuit and overflow valve（5）Connection.
5. road roller hydraulic circuit according to claim 1, it is characterised in that：The hydraulic motor A（4）With hydraulic pressure horse
Up to B（8）Between unicom hydraulic circuit on check valve is installed（6）.
6. the road roller hydraulic circuit according to any one claim in claim 1 to 5, it is characterised in that：Institute
State solenoid valve（7）For two-position three way magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721712219.XU CN207598647U (en) | 2017-12-11 | 2017-12-11 | Road roller hydraulic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721712219.XU CN207598647U (en) | 2017-12-11 | 2017-12-11 | Road roller hydraulic circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207598647U true CN207598647U (en) | 2018-07-10 |
Family
ID=62763935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721712219.XU Expired - Fee Related CN207598647U (en) | 2017-12-11 | 2017-12-11 | Road roller hydraulic circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207598647U (en) |
-
2017
- 2017-12-11 CN CN201721712219.XU patent/CN207598647U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |